my period lasted 3 days. (which is highly unusual.) then directly after, i got black discharge. black turned to brown a few days later. then it was like water was pouring out of my uterus. i needed to wear a pad, because it was soaking through my pads. it didnt stop for 3 days. then, dark brown/red discharge began, now a watery red is happening. is that my period? after a week? i need to know what is wrong with my vagina.